stop start LEXUS RX450h 2022 User Guide

852-1. Instrument cluster
2
Vehicle status information and indicators
■Rev indicator (F SPORT models)
When the engine speed reaches a set
speed, a ring-shaped indicator will be
displayed on the tachometer.
The desired engine speed at which the Rev
indicator will begin to be displayed can be
set on of the multi-information display.
(  P.88)
■Rev peak (F SPORT models)
The engine speed reaches or exceeds
4000 rpm, an afterimage of the
tachometer will be displayed at the
highest engine speed for approxi-
mately 1 second.
■The meters and display illuminate when
The power switch is in ON mode.
■Hybrid System Indicator
Except F SPORT models
Charge area
Shows regenerative charging.
Hybrid Eco area
Shows that gasoline en gine power is not
being used very often.
The gasoline engine will automatically stop
and restart under various conditions.
Eco area
Shows that the vehicle is being driven in an
Eco-friendly manner.
Power area
Shows that an Eco-friendly driving range is
being exceeded (during full power driving
etc.)
F SPORT models
Charge area
Shows regenerative charging.
Hybrid Eco area
Shows that gasoline en gine power is not
A
B
C
D
A
B

862-1. Instrument cluster
being used very often.
The gasoline engine will automatically stop
and restart under various conditions.Eco area
Shows that the vehicle is being driven in an
Eco-friendly manner.
Power area
Shows that an Eco-friendly driving range is
being exceeded (durin g full power driving
etc.)
●Depending on the selected driving mode,
the Hybrid System Indicator or tachome-
ter will be displayed. The Hybrid System
Indicator or tachometer can be set to
always be displa yed on of the
multi-information display. ( P.92)
●The Hybrid System Indicator is displayed
in the following situations:
• When the tachometer setting is set to
change according to the driving mode
and a driving mode other than sport
mode is selected
• When the tachometer setting is set to always display the Hybrid System Indica-
tor
●By keeping the indicat or needle (except
F SPORT models) or bar display (F
SPORT models) within the Eco area,
more Eco-friendly driving can be
achieved.
●Charge area indicates regeneration* sta-
tus. Regenerated energy will be used to
charge the hybrid battery (traction bat-
tery).
*: When used in this manual, regeneration
refers to the conversion of energy cre-
ated by the movement of the vehicle into
electrical energy.
■Tachometer
Hybrid System Indicator switches to the
tachometer when driving mode is in sport
mode.
The settings of the ta chometer display can
be changed on the multi-information dis-
play.
■Engine speed
On hybrid vehicles, engine speed is pre-
cisely controlled in order to help improve
fuel efficiency and reduce exhaust emis-
sions etc.
There are times when the engine speed that
is displayed may differ even when vehicle
operation and driving conditions are the
same.
■Outside temperature display
●In the following situations, the correct
outside temperature may not be dis-
played, or the display may take longer
than normal to change:
• When stopped, or driving at low speeds (less than 12 mph [20 km/h])
• When the outside temperature has
changed suddenly (at the entrance/exit of
a garage, tunnel, etc.)
●When “--” or “E” is displayed, the system
may be malfunctioning . Take your vehicle
to your Lexus dealer.
■Liquid crystal display
Small spots or light sp ots may appear on the
display. This phenomenon is characteristic
of liquid crystal disp lays, and there is no
problem continuing to use the display.
■Customization
The gauges and meters can be customized
on of the multi-in formation display.
( P.92)
C
D
WARNING
■The information display at low tem-
peratures
Allow the interior of the vehicle to warm
up before using the liquid crystal infor-
mation display. At extremely low tem-
peratures, the information display
monitor may respond slowly, and display
changes may be delayed.

1063-1. Key information
3-1.Key information
The following keys are provided with
the vehicle.Electronic keys
• Operating the smart access system with push-button start ( P.125)
• Operating the wireless remote control function ( P.107)
Mechanical keys
Key number plate
■When riding in an aircraft
When bringing an elec tronic key onto an
aircraft, make sure you do not press any
buttons on the electronic key while inside
the aircraft cabin. If you are carrying an
electronic key in your bag, etc., ensure that
the buttons are not likely to be pressed acci-
dentally. Pressing a button may cause the
electronic key to em it radio waves that
could interfere with the operation of the air-
craft.
■Electronic key battery depletion
●The standard battery life is 1 to 2 years.
●If the battery becomes low, an alarm will
sound in the cabin when the hybrid sys-
tem is stopped.
●To reduce key battery depletion when the
electronic key is to not be used for long
periods of time, set the electronic key to
the battery-saving mode. ( P.126)
●As the electronic key always receives
radio waves, the battery will become
depleted even if the electronic key is not
used. The following symptoms indicate
that the electronic key battery may be
depleted. Replace the battery when nec-
essary.
• The smart access system with push-but- ton start or the wireless remote control
does not operate.
• The detection area becomes smaller.
•The LED indicator on the key surface
does not turn on.
●To avoid serious dete rioration, do not
leave the electronic key within 3 ft. (1 m)
of the following electrical appliances that
produce a magnetic field:
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Recharging cellular phones or cordless
phones
•Table lamps
• Induction cookers
■Replacing the battery
P.386
■Confirmation of the registered key
number
The number of keys already registered to
the vehicle can be confirmed. Ask your
Lexus dealer for details.
■If “A New Key has been Registered
Contact Your Dealer for Details” is
shown on the multi-information display
This message will be displayed each time
the driver’s door is opened when the doors
are unlocked from the outside for approxi-
mately one week after a new electronic key
has been registered.
If this message is disp layed but you have not
had a new electronic key registered, ask
your Lexus dealer to check if an unknown
electronic key (other than those in your
possession) has be en registered.
Keys
The keys
A
B
C

1073-1. Key information
3
Before driving
The electronic keys are equipped with
the following wireless remote control:Locks all the doors (
P.109)
Unlocks all the doors ( P.109)
Opens the windows
*2 and the
moon roof
*1, 2 or panoramic moon
roof
*1, 2 ( P.109)
Opens and closes the power back
door ( P.114)
Sounds the alarm
*1: If equipped
*2: These settings must be customized at
your Lexus dealer.
■Theft deterrent panic mode
When is pressed for longer than
about one second, an alarm will sound
intermittently and the vehicle lights will flash
to deter any person from trying to break
into or damage your vehicle.
To stop the alarm, pr ess any button on the
electronic key.
To take out the mechanical key, push
NOTICE
■To prevent key damage
●Do not drop the keys, subject them to
strong shocks or bend them.
●Do not expose the keys to high tem-
peratures for long periods of time.
●Do not get the keys wet or wash them
in an ultrasonic washer, etc.
●Do not attach meta llic or magnetic
materials to the keys or place the keys
close to such materials.
●Do not disassemb le the keys.
●Do not attach a sticker or anything else
to the surface of the electronic key.
●Do not place the keys near objects that
produce magnetic fields, such as TVs,
audio systems and induction cookers,
or medical electrical equipment, such
as low-frequency therapy equipment.
■Carrying the electronic key on your
person
Carry the electronic key 3.9 in. (10 cm)
or more away from electric appliances
that are turned on. Radio waves emitted
from electric applianc es within 3.9 in. (10
cm) of the electronic key may interfere
with the key, causing the key to not func-
tion properly.
■In case of a smart access system with
push-button start malfunction or
other key-related problems
 P.439
■When an electronic key is lost
 P.438
Wireless remote control
Using the mechanical key
A
B
C
D
E

1103-2. Opening, closing and locking the doors
To prevent unintended triggering of the
alarm, unlock the doors using the wireless
remote control and open and close a door
once after the settings have been changed.
(If a door is not opened within 60 seconds
after is pressed, the doors will be
locked again and the alarm will automati-
cally be set.)
In a case that the alarm is triggered, imme-
diately stop the alarm. (P.74)
■Impact detection door lock release sys-
tem
In the event that the vehicle is subject to a
strong impact, all the doors are unlocked.
Depending on the force of the impact or the
type of accident, however, the system may
not operate.
■Operation signals
Doors:
A buzzer sounds and the emergency flash-
ers flash to indicate that the doors have
been locked/unlocke d. (Locked: Once;
Unlocked: Twice)
Windows and moon roof or panoramic
moon roof:
A buzzer sounds.
■Security feature
If a door is not opened within approximately
60 seconds after the vehicle is unlocked,
the security feature automatically locks the
vehicle again.
■When the door cannot be locked by the
lock sensor on the surface of the door
handle
When the door cannot be locked even if the
lock sensor on the surface of the door han-
dle is touched by a finger, touch the lock
sensor with the palm.
When gloves are being worn, remove the
gloves.
■Door lock buzzer
If an attempt to lock the doors using the
smart key system is made when a door is
not fully closed, a buzzer will sound continu-
ously for 5 seconds. Fully close the door to
stop the buzzer, and lock the doors again.
■Setting the alarm
Locking the doors will set the alarm system.
( P.74)
■Conditions affecting the operation of
the smart access system with push-but-
ton start or wireless remote control
P.126
■If the smart access system with
push-button start or the wireless remote
control does not operate properly
Use the mechanical key to lock and unlock
the doors. (P.439)
Replace the key battery with a new one if it
is depleted. ( P.386)
■If the 12-volt batte ry is discharged
The doors cannot be locked and unlocked
using the smart access system with
push-button start or wireless remote con-
trol. Lock or unlock the doors using the
Multi-information display/BeepUnlocking function
Exterior: Beeps 3 times
Interior: Pings once
Holding the driver’s
door handle unlocks
only the driver’s
door.
Holding any of the
passenger door
handles unlocks all
the doors.
Exterior: Beeps twice
Interior: Pings once
Holding a door han-
dle unlocks all the
doors.

1143-2. Opening, closing and locking the doors
■Smart access system with
push-button start
Carry the electronic key to enable this
function. 1
Locks all the doors
Check that the door is securely locked.
2Unlocks all the doors
The doors cannot be unlocked for 3 sec-
onds after the d oors are locked.
■Wireless remote control
 P.107
■Door lock switch
 P.111
■Opening/closing the power back
door using the wireless remote
control
Press and hold the switch for approxi-
mately 1 second.
The power back door can be operated
whether it is locked
* or unlocked.
Pressing the switch while the power back
door is opening/closing will stop the oper-
ation.
Pressing and holding the switch again for
approximately 1 second will operate the
power back door in the opposite direction.
WARNING
●When closing the power back door,
take extra care to prevent your fingers,
etc., from being caught.
●When closing the power back door,
make sure to press it lightly on its outer
surface. If the back d oor handle is used
to fully close the power back door, it
may result in hands or arms being
caught.
●Do not pull on the back door spindle
(P.122) to close the power back
door, and do not hang on the back
door spindle.
Doing so may cause hands to be caught
or the back door spindle to break, caus-
ing an accident.
●If a bicycle carrier or similar heavy
object is attached to the power back
door, it may suddenly shut again after
being opened, causing someone’s
hands, arms, head or neck to be
caught and injured. When installing an
accessory part to the power back
door, using a genuine Lexus part is
recommended.
Unlocking and locking the
power back door from the out-
side
Unlocking and locking the
power back door from the inside
Opening/closing the power back
door

1163-2. Opening, closing and locking the doors
sound and the power back door will begin
closing automatically. When the power
back door is closed, all of the doors will
lock simultaneously and operation signals
will indicate that all of the doors have been
locked.
If the switch is pr essed while the power
back door is closin g, the operation will
stop.
Pressing the switch again will open the
power back door automatically.
■Closing the power back door using
the back door handle
Lower the power back door using the
back door handle, then a buzzer will
sound and the power back door will
automatically close.
■Hands Free Power Back Door (if
equipped)
1 While carrying an electronic key,
stand within the smart access sys-
tem with push-button start opera- tion range, approximately 19.7 to
23.6 in. (50 to 60 cm) from the
rear bumper.
Kick sensor
Hands Free Power Back Door
operation detection area
Smart access system with
push-button start operation detec-
tion area (
P.125)
2 Perform a kick operation by mov-
ing your foot to within approxi-
mately 3.9 in. (10 cm) of the rear
bumper and then pulling it back.
 Perform the entire kick operation
within 1 second.
 The Hands Free Power Back Door
will not start operating while a foot is
detected under the rear bumper.
 Operate the Hands Free Power
Back Door without contacting the
rear bumper with your foot.
 If another electronic key is in the
cabin or luggage compartment, it
may take slightly longer than normal
A
B
C

1183-2. Opening, closing and locking the doors
●When an electronic key is carried within
the operation range.
■Hands free close & lock function oper-
ating conditions (vehicles with Hands
Free Power Back Door)
This function can be operated when all of
the following conditions are met:
• The hands free close & lock function set- ting is on.
• The Hands Free Powe r Back Door oper-
ating conditions are met.
• An electronic key is not detected within the vehicle.
• All of the doors ot her than the power
back door are closed.
• The power switch is off.
■Back door closer
In the event that the po wer back door is left
slightly open, the back door closer will auto-
matically close it to the fully closed position.
●The back door closer can function when
the power switch is in any mode.
●The power back door can be opened
using the back door opener switch even if
the back door closer is operating.
■Operation of the power back door
●When the power back door begins to
operate, the emergency flashers will flash
and a buzzer will sound.
●When the power back door is disabled,
the power back door will not operate but
can be opened and closed manually.
●The power back door turns to manual
operation when the back door opener
switch is pressed while the power back
door is in an automatic opening/closing
operation.
●If anything obstructs the power back
door while opening, a buzzer will sound
and the power back door will stop imme-
diately. If anything obstructs the power
back door while closing, a buzzer will
sound and the power back door will auto-
matically move slightly in the opposite
direction and then stop.
■Back door reserve lock function
This function reserves the locking of the
power back door when the power back
door is open. If the following operations are
performed, all of the doors except the
power back door will lock and then the
power back door will lock when it is com-
pletely closed.
1 Close all of the doors, except the power
back door.
2 Perform an automatic closing operation
of the power back door and lock the
doors using the wire less remote control
(  P.107) or smart access system with
push-button start ( P.109) while the
power back door is closing.
Also, if the back door does not fully close
due to the operation of the jam protection
function, etc., while th e back door is auto-
matically closing after a reserve lock opera-
tion is performed, the reserve lock function
is canceled and all the doors will unlock.
■Situations in which the close & lock
function may not operate properly
In the following situations, the close & lock
function may not operate properly:
●If the switch on th e lower part of the
power back door ( P.115) is pressed by
a hand which is holding an electronic key
●If the switch on th e lower part of the
power back door ( P.115) is pressed
when the electronic key is in a bag, etc.
that is placed on the ground
●If the switch on th e lower part of the
power back door ( P.115) is pressed
with the electronic key not near the vehi-
cle.
■Situations in which the Hands Free
Power Back Door may not operate
properly (if equipped)
In the following situations, the Hands Free
Power Back Door may not operate prop-
erly:
●When a foot remain s under the rear
bumper
●If the rear bumper is strongly hit with a
foot or is touched for a while

1213-2. Opening, closing and locking the doors
3
Before driving
WARNING
●If the operating conditions of the
power back door (P.117) are no lon-
ger met, a buzzer may sound and the
power back door may stop opening or
closing. The power back door must
then be operated manually. Take extra
care on an incline in this situation, as
the power back door may move sud-
denly.
●On an incline, the power back door
may suddenly shut af ter it opens. Make
sure the power back door is fully open
and secure.
●In the following situations, the power
back door may detect an abnormality
and automatic operation may be
stopped. In this case, the power back
door must then be operated manually.
Take extra care in this situation, as the
stopped power back door may sud-
denly open or close, causing an acci-
dent.
• When the power back door contacts an obstacle
• When the 12-volt battery voltage sud- denly drops, such as when the power
switch is turned to ON mode or the
hybrid system is started during auto-
matic operation
●If a bicycle carrier or similar heavy
object is attached to the power back
door, the power back door may not
operate, causing a ma lfunction, or the
power back door may suddenly shut
again after being opened, causing
someone’s hands, arms, head or neck
to be caught and injured. When install-
ing an accessory part to the power
back door, using a genuine Lexus part
is recommended.
■Jam protection function
Observe the following precautions.
Failure to do so may cause death or seri-
ous injury.
●Never use any part of your body to
intentionally activate the jam protec-
tion function.
●The jam protection function may not
work if something gets caught just
before the power back door fully
closes. Be careful not to get fingers
caught or anything else.
●The jam protection function may not
work depending on the shape of the
object that is caught. Be careful not to
catch fingers or anything else.
■Hands Free Power Back Door (if
equipped)
Observe the following precautions.
Failure to do so may cause death or seri-
ous injury.
●Check the safety of the surrounding
area to make sure there are no obsta-
cles or anything that could cause any
of your belongings to get caught.
●Exhaust gasses cause the exhaust
pipes to become quite hot. When
operating the Hands Free Power Back
Door, be careful not to touch the
exhaust pipe.
●Do not operate the Hands Free Power
Back Door if there is little space under
the rear bumper.

1223-2. Opening, closing and locking the doors
NOTICE
■Back door spindles
The power back door is equipped with
spindles that ho ld the power back
door in place.
Observe the following precautions.
Failure to do so may cause damage to
the back door spindle , resulting in
malfunction.
●Do not attach any foreign objects, such
as stickers, plastic sheets, or adhesives
to the spindle rod.
●Do not attach any accessories other
than genuine Lexus parts to the power
back door.
●Do not place your ha nd on the spindle
or apply lateral forces to it.
■To prevent back door closer malfunc-
tion
●Do not apply excessive force to the
power back door while the back door
closer is operating. Applying excessive
force may cause the back door closer
to malfunction.
●If the power back door is opened and
closed repeatedly in a short amount of
time, the back door closer may stop
operating. In this case, manually open
the power back door once and wait for
a while before attempting to close it
again.
A
A
■To prevent malfunction of the power
back door
●Make sure that there is no ice between
the power back door and frame that
would prevent movement of the power
back door. Operating the power back
door when excessive load is present
on the power back door may cause a
malfunction.
●Do not apply excessive force to the
power back door while the power
back door is operating.
●Take care not to damage the sensors
installed on the right and left edges of
the power back door (
P.119) with a
knife or other sharp object. If a sensor
is disconnected, the power back door
will not close automatically.
■Close & lock function/Hands free
close & lock function
When closing the power back door using
the close & lock function/hands free
close & lock function, a different buzzer
than the normal one will sound before
the operation begins.
To check that the operation has started
correctly, check that a different buzzer
than the normal one has sounded.
Additionally, when the power back door
is fully closed and locked, operation sig-
nals will indicate that all of the doors have
been locked.
Before leaving the vehicle, make sure
that the operational signals have oper-
ated and that all of the doors are locked.
■Hands Free Power Back Door pre-
cautions (if equipped)
The kick sensor is located behind lower
center part of the rear bumper. Observe
the following to ensure that the Hands
Free Power Back Door function operates
properly: